Cushion-tire.



A. HAJ'OS.

CUSHION TIRE. APPLICATION -FILED AUG`10. 1910.

1,021,983. Patented Apr/2,1912. v

2 SHEETS-SHEET l.

' lilac/? V A. HAJOS.,

CUSHION TIRE. APPL'I GATION FILED`AUG-10. 1910.

1,021,983. Patented Ap. 2, 1912.

2 SHEETS-SHEET 2.

V ALBIN HAJosoF cinnamon. Tennessee@- l oUsiiioN-Tiniev;

To aZZlolo-mcft may concern v'useful Improvements in Cushion-Tires, of .which the following is Va specification'.` y This invention -relates, to improvements in Be it known that ALBI HAJos, a ci-tif zen of the United States; residing at Chat! tanooga, iii the. county. of` Hamilton and State of 'l`ennessce, have invented-'new and lcushion tires.

The desirability f securing sfere which has the saine resilient propertiesras "anni-' Hated rubber tire and yet which .withal lacks thev disadvantages of an inflated. rubbertire,

has long been recognized .and various constructions ofA cushion tires havefbeen pro-f posed to meet the requirement; Inf most instz'inccs,l l ioivever such.. cushion v tir/es have embodied an organization ofmechanical adjuncts in substitutionkfoi` the infiated rubber cushion 'ordinarily employed. :Tiresfof this.

character have not', so far asy I am favvare,

niet with success for thereason thatsprngs, regardless of their foriiror.arrangement,A do

not possess .the same degree of shock absorbing propertyas an `inflatedrubber. tube,they are not asl sensitiveor. responsive, they' crystallizerapidly, and theyl causeuiiduewearl' of the parts with which they are associated.`

The object of thepresent inventionis to provide which treadgelgni \nts provided'for coperation with ,the/'rubber tube aforesaid afford A an efficient anti-'skidding means.

VThe parts'which go to -inakeup-tlieor- Uanized '.,cons'truction are 'ofv such'. detail structure and `-are assembled in. such manner that `:undue Wearis avoided and theVI efficient life of the vtire is considerably vlonger than that of an ordinary rubber tire or 'ofinany oi. the arrangements proposed as substitutes for the ordinary rubbertire'.l

. Embodiments ofthe "nvention are 'illustrated by way of`exaiii panying drawings, whereinm Figure "speciaqtin @Leiters raient. pplication filed August 10, i910. :Serial No. 576,436.

views. y t y.

The for-m. o'-construetion shown in Figi y consists essentially of the following elements,`viz: anzouterwnietallic casing-rigidly a cushion tire in' which.' an viniatedk rubber `tube 'is embodied as the cushioningl element, in Which there -is absolutelyno'liaf: -bility to puncturing or blow-outs and in ple in the f accoin.

i 1 lis across sectional view'of a.' .preferred form of the improved tire; Fig: 2 is developed fragmentary plan vieivf showing the tread face of theiiiiprove'd tire; Fig.y 3. is a fragmentary 'longitudinal sec-y Patnted Apice. 1912.

tional view.l ofi-'the improved tire in the planeofxafperipheral row ot tr'ead elements;- 4 y Figa isayperspe'ctive View of a preferred' ,Iforin .of treadfelemeiitglig. 5 is a cross sectional view of a modifiedconstruction; Fig; G is a fragmentary developed plan vieu?y showing a variation in the faTi-angeinent of the tread element-s; andFigf is a'perspectread elements shown in Fig. 6.

Similar characters off reference designate corresponding parts throughout tlieseveral tive view lof a modified construction 'of the associated-v With' the' rim, a rubber tiibef y kWholly inclolsed pin 'the casing `and ofthe construction of anford'inary inner tube, and

treadgelementsA cooperating '.vvitli the. rubrubbercushioning-tube. his arranged. The tread] elements 4which' cooperate With -the cushioningltube are shown zit-6vv and inltheir inner head @and an gouter ,head 6c. The

section 2`of the" outer metallic casing Ahas ai l erably of double .Wall construction.v and.' in#v cludes, in addition V.to thejfouter 'peripheral Wall han innerfwall 8 conceiitrical'lyire- 'thickened peripheral portion which is pref- *i lated'to the Walland 'betvveenn'vhieha space 9' occurs, Whicli'niay be simply -an air spacci1 as in Fig.. l, ior which 'may contain 'alight` illenof leatheifor other suitable .ma--

aterial'-asisliown atfl() in Fig. A The Wallsv 7 andLv 8 4are moreover formed with registering slots through which the Shanks 6? of the tre-ad elements extend. The vobject oi forniing the section 2 With a thickened peripheralv portion is to provide `0r more eiciently guiding. the y movements. It will be apparent that the fvvalls the slots through which the Shanks tread elementsin their radiz'ill i 6El extend constitute guides for said shanks and owing -to thethickened construction of tion.

' The section 2a the peripheral portion of the outer section 2, the extent of the guiding surfaces is materially increased. For this reason undue lateral play of the tread elements is prevented and it follows that there will be no undue Wear nor any liability to distortion of the cross section of the tread elements. Between the heads 6b and the adjacent portion of the inner tube 5y an annular protecting strip 12, preferably of soft rubber, is interposed. This strip is capable of yielding at any portion of its extent and consequently does not interfere With the individual displacement of a particular tread element. The strip 12 moreover protects the inner tubev 5 from wear. In order to4 obtain an efficient yielding displacementof the tread elements the openings through which the shanks 6a extend are preferably of `out wardly flaring outline, as shown in Fig.l 3.

In Fig. 5 the invention is shown in its ap-f plication to an ordinary tire, the latter be- 1ng made to constitute the cushioning adjunct. In this construction the outer casing is made in sections 1a and 2a corresponding to the sections 1 and 42 employed in the construct-ion of Fig. 1. The section la is, 'hovv ever, fitted over the Wooden rim and is beaded or fiauged so that its edge portion fits over the metal rim 13 Whichis attached to said Wooden rim in the ordinary manner.

`which is the outer .tube of air ordinary tire and Within Which the inne tube 15 is arranged. rIhe section 2El completely incloses the casing 14 and its peripheral portion is preferably of the double` Wall construction above described, and outer walls 7a and 8a correspondin Walls 7 and 8 of the construction` o Fig. |`1. Owing to the curved cross section of the sectionV 2n t-he tread elements V.present their heads 6F in transversely convexwise disposito the In the plan view shown in Fig. -6 the tread elements are arranged at angles toune another in such vmanner that each pair of adjoining tread elements forms a V. The slots through which the Shanks extend are of course shaped and arranged accordingly.

In Fig. 7 a'modified construction o tread,

element is shown in which the `shank for each tread-element comprises a pair of pins which connect the inner and outer heads.

- apparent. that struction provides :for the same degree of From the foregoing description it will be the iniiatedinner tube con- .v'vill have alonger life;

vdue lateral play of the is shaped'to correspond to involvesinner andy ing bolted ange resiliency as that which is secured by an inflated rubber tire; that. the tread elements afford an eicient anti-skiddingmeans-and are individually yieldable to pass over small obstructions or surface" irregularities as shown in' Fig. 1; that the protectingA strip 12 or, in the construction shown in Fig. 5,' the casing 14, affords anl eflicient means for preventing undue Wea-rfon the fer tube and at the same time does not inter re with the individual yielding of-the tread elements; that the complete inclosure of the inner tube Within an outermet'allic shell prevents blow-outsnd makes it possible to use'a less degree of inflating pressure, sincerjge: stresses are taken up by the Walls of Le voutei casing; that in the event of afdeiaf tion of the inner tube the practical us'e of the tire is still. possible, enablin thedriver. to complete his run thatthe in ation of the inner tube does not produce any material expansion thereof' nor change its cross sec,\

tional shape to any material N1. egree,"-1f which reason the inner tube `is n sgrreadi y liable 'to become crack or scorie .as ordinary` constructions' and consequently construction of the outer peripheral portion of the metallic casing provides against untread elements a`d affords an' increased extent of lateral support, thereby .preventing undue wear as Well as th'e liability I of cross sectional distortion of the tread elements; that the attachment of `the outercasing directly to the wooden r1m vandthe complete' inclosure of the inner inf'the L that the thickened Y A tube Within-the outer "provides against any relative creeping oi, eripheral dlsplacement of the outer .casingand the rim or of the outer casing and theinner tube. I l'. f'

Having fully described my. invention, I clairn: v f

A cushion tire comprising 4an outer metallic shell which -is made in two sections havconnection with one another, one of the sections being ri idly se" cured to the rim. of the wheel and t e other section having a thickened peripheral po'i-,y tion which is provided wit slotted open# ings, tread elements having an vIsha ed cross section and having Shanks` slidailfy disposed' in the slotted openings and. lads 'at each end of the Shanks and of greaterexthe. adJacent end 1,20 l. toA provide for' nail 1ongitudinal` dis-1l tent than theopenings,

faces of the .openingsnd relatively tapering -so as, certain degree of pivotal placement of said Shanks p l ments comeinto contact -vvitlf the thel Shanks being id a an inflatable rubber cushioning'tube wh llylza inclosed in the shell, anda lprotectingfstrip of iexible materialjinterpo'sed.between thel cushioning tubeand the naar` elements to I' protect the former, the eushionino' nube nd In testimony Where-of Il have hereunto seti the protecting strip together 'conorming to my hand in presence of two subscribing Witthe cross sectional outline of the shelL-the messes. A

said thickened peripheral portion being of ALBIN HAJOS. double Walled construction and having an Witnesses: intervening space in which peeking matev S. C. BROOKS,

rial may be interposed. CHAs. S. CoFFnY. 

